.box{
   position: absolute;
   left: 0;
   right: 0;
   top: 0;
   bottom: 0;
   background: #f2f3f8;
}
.el-menu-vertical-demo:not(.el-menu--collapse) {
   width: 256px;
}
.el-padding{
  padding: 0 0 80px 0;
}
.el-header{
  background: white;
  box-shadow: 0px 20px 15px 1px rgba(69,65,78,0.1);
  position: relative;
  border-bottom: 1px solid #f2f3f8;
}
.el-header .el-icon-rank{
  position: absolute;
  top:15px;
  right: 160px;
  display: inline-block;
  font-size: 28px;
  color: #909399;
  cursor: pointer;
  transform: rotate(45deg);
}
.el-header .el-icon-rank:hover{
  color: #32b177;
}
.el-header .user img{
  width: 50px;
  height: 50px;
  border-radius: 50%;
  animation: rotation 3s linear infinite;
}
@keyframes rotation{
  from {transform: rotate(0deg);}
  to {transform: rotate(360deg);}
}
/* 历史导航 */
.history-nav{
  height: 24px;
  background: white;
  width: 100%;
  position: absolute;
  bottom: 0;
}
.history-box{
  display: inline-block;
}
.history-box .el_tag{
  background: #32b177;
  color: white;
}
.history-box .el_tag >>> .el-tag__close{
  color: white;
}
.history-nav .historynavname{
   margin-left: 5px;
   cursor: pointer;
}



.el-menu{
  border: none;
}
.sidebar-head{
  height: 60px;
  background: rgb(85, 109, 132);
  width: 100%;
  color: white;
  font-size: 26px;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
}
.sidebar-head .text{
  font-size: 20px;
  padding: 0 10px;
  font-family: PingFang SC;
}
.el-main{
  position: relative;
}
.el-main .el-main-router{
  position: absolute;
  left: 0;
  right: 0;
  top:40px;
}
/* 当头部历史菜单选项不为空的时候 */
.el-main .el-breadcrumb{
  height: 40px;
  display: flex;
  align-items: center;
  background: #f2f3f8;
  width: 100%;
}